CN107505670B - Backlight and display device - Google Patents
Backlight and display device Download PDFInfo
- Publication number
- CN107505670B CN107505670B CN201710866413.1A CN201710866413A CN107505670B CN 107505670 B CN107505670 B CN 107505670B CN 201710866413 A CN201710866413 A CN 201710866413A CN 107505670 B CN107505670 B CN 107505670B
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- China
- Prior art keywords
- light
- guide plate
- glue frame
- light guide
- backboard
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133334—Electromagnetic shields
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to field of display technology, disclose a kind of backlight and display device, the backlight, including backboard, the glue frame that is installed on backboard, the light guide plate in the accommodation space that glue frame surrounds and positioned at light guide plate away from backboard side and the optical film material that is stacked with light guide plate, at least one side in the side of light guide plate forms incidence surface, remaining side is non-incidence surface, wherein, matt structure is cooperatively formed between at least one non-incidence surface and glue frame, to eliminate the light that at least part is projected from non-incidence surface.Backlight provided by the invention is formed and is emitted beam the effect of Shangdi elimination to a certain degree to the non-light-emitting surface of light guide plate, can preferably be eliminated weakening and even be eliminated bright line, promote the picture quality of backlight by matt structure.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of backlight and display device.
Background technique
Backlight is a kind of light source positioned at liquid crystal display behind, in the illuminated back light source structure in side, general meeting
There is bright line generation in light emission side.And bright line producing cause are as follows: the light projected from the non-incidence surface of light guide plate is reflected by glue frame, instead
It is overlapped after being emitted back towards light guide plate with the light generation inside light guide plate, causes light to be concentrated, scattered to using the site of light guide plate
The light-emitting surface of light guide plate causes regional area brightness obviously to be reinforced, makes to human eye that is, so that unit area light shot improves
At visual bright effect, to form bright line phenomenon.
In the prior art, it is the generation for avoiding bright line, usually increases the size of shading rubber belt in design, that is, increase and hide
Optical cement band covered the generation area of bright line with membrane material, the amount over overlap of light guide plate.Although this method improve bright line effect compared with
It is good, but since amount over overlap increases, at least there is following Railway Project:
1. being unable to satisfy the requirement of mobile phone narrow frame design；
2. reducing mobile phone effective display area.
Therefore it provides a kind of not only can guarantee liquid crystal module actual displayed region area, but also liquid crystal module side can be effectively eliminated
Edge bright line, the backlight for promoting picture quality are particularly important.
Summary of the invention
The present invention provides a kind of backlight and display device, above-mentioned backlight is led by improving self structure, reduction
A possibility that light that the non-light-emitting surface of tabula rasa projects is reflected back inside light guide plate by glue frame, can avoid this to a certain extent
Light is overlapping to form light concentration phenomenon, thus be conducive to weakening on the basis of guaranteeing effective display area domain area even be eliminated it is bright
Line promotes display quality.
In order to achieve the above objectives, the present invention the following technical schemes are provided:
A kind of backlight, including backboard, the glue frame that is installed on the backboard, in the accommodation space that the glue frame surrounds
Light guide plate and positioned at the light guide plate away from the backboard side and with the light guide plate be stacked optical film material, it is described to lead
At least one side in the side of tabula rasa forms incidence surface, remaining side is non-incidence surface, wherein at least one is described non-
Matt structure is cooperatively formed between incidence surface and the glue frame, to eliminate the light that at least part is projected from the non-incidence surface
Line.
In above-mentioned backlight, stacked light guide plate and optical film material are placed in the accommodation space of glue frame, due to light guide plate
At least one side in side forms incidence surface, remaining side is non-incidence surface, wherein at least one non-incidence surface and glue
Matt structure is cooperatively formed between frame, then after the light in light guide plate is projected from non-smooth surface, is formed in light guide plate and glue frame
Matt structure can eliminate the above-mentioned light of at least part, be again introduced into light guide plate after glue frame reflection to optimize above-mentioned light
The case where, so that showing for overlapping generation light concentration occurs for the light alleviated inside the light and light guide plate being reflected back in light guide plate
As weakening even is eliminated bright line, promotes the picture quality of backlight.
Backlight provided by the invention emits beam to a certain degree to the non-light-emitting surface of light guide plate by matt structure, formation
Shangdi elimination effect, can preferably eliminate weakening and even be eliminated bright line, promote the picture quality of backlight.
Therefore, for above-mentioned backlight by improving self structure, the light for reducing the non-light-emitting surface injection of light guide plate passes through glue
Frame is reflected back a possibility that inside light guide plate, can avoid above-mentioned light is overlapping to form light concentration phenomenon to a certain extent, from
And be conducive to weaken on the basis of guaranteeing effective display area domain area even to be eliminated bright line, promote display quality.
Preferably, the matt structure includes:
The protrusion for being convex to the glue frame that the non-incidence surface is formed, surface and institute in the protrusion towards the backboard
State light guide plate towards a side surface of the glue frame, the backboard towards in the surface of the protrusion a part and the glue
Frame cooperatively forms a shading slot towards a part in the surface of the light guide plate, wherein described raised towards the backboard
A side surface be formed with the first light-absorption layer.
Preferably, the glue frame is formed with gap towards between the surface and the non-incidence surface of the non-incidence surface, and
The glue frame is equipped with the second light-absorption layer for covering the gap away from the side of the backboard, and the glue frame is led described in
Part in the surface of tabula rasa for cooperatively forming the shading slot is inclined-plane, and the inclined-plane and the backboard are towards described convex
Angulation is obtuse angle between part in the surface risen for cooperatively forming the shading slot, and the non-incidence surface is projected
Light in a part be reflected towards second light-absorption layer.
Preferably, the obtuse angle is 145 °.
Preferably, second light-absorption layer is shading rubber belt.
Preferably, the glue frame is equipped with towards in the surface of the light guide plate for cooperatively forming the part of the shading slot
Third light-absorption layer.
Preferably, the backboard is equipped with for cooperatively forming the part of the shading slot towards in the surface of the protrusion
Four light-absorption layers.
Preferably, first light-absorption layer is shading rubber belt or light-absorbing coating, and the third light-absorption layer is shading rubber belt
Perhaps light-absorbing coating the 4th light-absorption layer is shading rubber belt or light-absorbing coating.
Preferably, the light-absorbing coating is polytetrafluoroethylene film.
The present invention also provides a kind of display devices, including any one backlight provided in above-mentioned technical proposal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of backlight provided in an embodiment of the present invention；
Fig. 2 is backlight another kind structural schematic diagram provided in an embodiment of the present invention；
Fig. 3 is backlight another kind structural schematic diagram provided in an embodiment of the present invention.
Icon: 1- backboard；2- glue frame；The inclined-plane 21-；3- light guide plate；4- optical film material；The first light-absorption layer of 5-；6- second inhales
Photosphere；7- third light-absorption layer；The 4th light-absorption layer of 8-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 1, the present invention provides a kind of backlight, including backboard 1, the glue frame 2 that is installed on backboard 1, it is located at glue frame 2
Light guide plate 3 in the accommodation space surrounded and positioned at light guide plate 3 away from 1 side of backboard and the optical film that is stacked with light guide plate 3
Material 4, at least one side in the side of light guide plate 3 form incidence surface, remaining side is non-incidence surface, wherein at least one
Matt structure is cooperatively formed between a non-incidence surface and glue frame 2, to eliminate the light that at least part is projected from non-incidence surface.
In above-mentioned backlight, stacked light guide plate 3 and optical film material 4 are placed in the accommodation space of glue frame 2, due to light guide plate
At least one side in 3 side forms incidence surface, remaining side is non-incidence surface, wherein at least one non-incidence surface
Matt structure is cooperatively formed between glue frame 2, then after the light in light guide plate 3 is projected from non-smooth surface, be formed in light guide plate 3 with
The matt structure of glue frame 2 can eliminate the above-mentioned light of at least part, be again introduced into after the reflection of glue frame 2 to optimize above-mentioned light
Situation in light guide plate 3 is reflected back the light in light guide plate 3 and the overlapping generation of the generation of the light inside light guide plate 3 to alleviate
The phenomenon that light is concentrated, weakening even are eliminated bright line, promote the picture quality of backlight.
Backlight provided by the invention is formed and is emitted beam certain journey to the non-light-emitting surface of light guide plate 3 by matt structure
Shangdi elimination effect is spent, weakening can be preferably eliminated and even be eliminated bright line, promote the picture quality of backlight.
Therefore, for above-mentioned backlight by improving self structure, the light for reducing the non-light-emitting surface injection of light guide plate 3 passes through glue
Frame 2 is reflected back a possibility that 3 inside of light guide plate, can avoid above-mentioned light is overlapping to form light concentration phenomenon to a certain extent,
It even is eliminated bright line to be conducive to weaken on the basis of guaranteeing effective display area domain area, promotes display quality.
Based on the above technical solution, matt structure includes:
The protrusion for being convex to glue frame 2 that non-incidence surface is formed, towards the surface of backboard 1 and light guide plate 3 towards glue frame 2 in protrusion
A side surface, backboard 1 towards in the surface of protrusion a part and glue frame 2 towards a part in the surface of light guide plate 3
Cooperatively form a shading slot, wherein protrusion is formed with the first light-absorption layer 5 towards a side surface of backboard 1.
It should be noted that above structure passes through the glue frame 2 in shading slot towards a part of in the surface of light guide plate 3
The light that the non-light-emitting surface of light guide plate 3 projects largely is reflected on the first light-absorption layer 5 of shading slot, makes it by the first extinction
Layer 5 absorbs, so that the reflection light that the light for reducing the injection of the non-light-emitting surface of light guide plate 3 reflects to form at glue frame 2 returns to leaded light
Quantity inside plate 3, the light inside reflection light and light guide plate 3 that weakening returns to inside light guide plate 3 is overlapping to form light collection
A possibility that middle, to achieve the purpose that eliminate bright line.
Based on the above technical solution, glue frame 2 between the surface and non-incidence surface of non-incidence surface towards between being formed with
Gap, and glue frame 2 is equipped with the second light-absorption layer 6 for coverage gap away from the side of backboard 1, glue frame 2 is towards the surface of light guide plate 3
In part for cooperatively forming shading slot be inclined-plane 21, and inclined-plane 21 and backboard 1 towards in the surface of protrusion for cooperating shape
It is obtuse angle at angulation between the part of shading slot, a part in light that non-incidence surface projects is reflected towards the second suction
Photosphere 6.
It should be noted that since glue frame 2 is towards for cooperatively forming the part of shading slot being oblique in the surface of light guide plate 3
Face 21, then the light of the non-light-emitting surface of light guide plate 3 injection can be changed at glue frame 2 in the inclined-plane 21 of glue frame 2 towards the side of light guide plate 3
The shooting angle of the reflection light of formation, so that a part of reflection light is projected from the side wall of the parallel glue frame 2 in inclined-plane 21, so as to
From second light-absorption layer of the directive vertical with 3 gaps of light guide plate of glue frame 26, absorbed by the second light-absorption layer 6.The structure is to a certain degree
On reduce the quantity for returning to the reflection light inside light guide plate 3, so as to preferably achieve the purpose that eliminate bright line.
Based on the above technical solution, it is preferred that with continued reference to FIG. 1, the table of inclined-plane 21 and backboard 1 towards protrusion
Formed obtuse angle is 145 ° between part in face for cooperatively forming shading slot.
It should be noted that from the angle between the non-light-emitting surface of light and light guide plate 3 that the non-light-emitting surface of light guide plate 3 projects
It, then, can be to the greatest extent by the reflection at glue frame 2 when above-mentioned obtuse angle is in 145 ° of angles generally within the scope of 80-100 °
At reflection light change into vertical with non-light-emitting surface, that is, the inner wall of glue frame 2 is parallel to, so that the part reflection light can
It from second light-absorption layer of the directive vertical with 3 gaps of light guide plate of glue frame 26, is absorbed, can be better achieved pair by the second light-absorption layer 6
The undesirable improvement of " bright line " optics improves mould group picture quality.
Based on the above technical solution, the second light-absorption layer 6 is shading rubber belt.
Based on the above technical solution, referring to FIG. 2, glue frame 2 towards in the surface of light guide plate 3 for cooperatively forming
The part of shading slot is equipped with third light-absorption layer 7.
It should be noted that the structure makes the inclined-plane 21 of the light arrival glue frame 2 issued from the non-light-emitting surface of light guide plate 3
It is directly absorbed afterwards by third light-absorption layer 7, reflection light will not be generated, to advanced optimize backlight pair provided by the invention
The improvement of " bright line " this optics bad phenomenon.
Based on the above technical solution, as a preferred implementation manner, referring to FIG. 3, backboard 1 towards protrusion
The 4th light-absorption layer 8 is equipped with for cooperatively forming the part of shading slot in surface.
It should be noted that table of the backboard 1 towards protrusion can be irradiated to from some light that the non-light-emitting surface of light guide plate 3 projects
For cooperatively forming the part of shading slot in face, and glue frame 2 is exposed to after the reflection of the part.Backboard 1 towards protrusion table
The 4th light-absorption layer 8 is set for cooperatively forming the part of shading slot in face, the part light projected from the non-light-emitting surface of light guide plate 3 can be made
When exposing to the part, the 4th light-absorption layer 8 for being located at the part absorbs line, to reduce the injection of the non-light-emitting surface of light guide plate 3
The reflection light that is reflected to form at glue frame 2 of light return to the quantity inside light guide plate 3, decrease back to inside light guide plate 3
Light inside reflection light and light guide plate 3, which overlaps, forms a possibility that light is concentrated, to achieve the purpose that eliminate bright line.
Based on the above technical solution, the first light-absorption layer 5 is shading rubber belt or light-absorbing coating, third light-absorption layer 7
For shading rubber belt, perhaps the 4th light-absorption layer 8 of light-absorbing coating is shading rubber belt or light-absorbing coating.
Based on the above technical solution, light-absorbing coating is polytetrafluoroethylene film.
The present invention also provides a kind of display devices, including any one backlight provided in above-mentioned technical proposal.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
Bright spirit and scope.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of backlight, which is characterized in that including backboard, the glue frame that is installed on the backboard, surrounded positioned at the glue frame
Light guide plate in accommodation space and positioned at the light guide plate away from the backboard side and the optics that is stacked with the light guide plate
Membrane material, at least one side in the side of the light guide plate form incidence surface, remaining side is non-incidence surface, wherein extremely
Cooperatively form matt structure between a few non-incidence surface and the glue frame, with eliminate at least part from it is described it is non-enter light
The light that face is projected；
The matt structure includes:
The protrusion for being convex to the glue frame that the non-incidence surface is formed is led towards the surface of the backboard with described in the protrusion
Tabula rasa towards a side surface of the glue frame, the backboard towards in the surface of the protrusion a part and the glue frame court
A part into the surface of the light guide plate cooperatively forms a shading slot, wherein described raised towards the one of the backboard
Side surface is formed with the first light-absorption layer.
2. backlight according to claim 1, which is characterized in that surface and institute of the glue frame towards the non-incidence surface
It states and is formed with gap between non-incidence surface, and the glue frame is equipped with for covering the gap away from the side of the backboard
Two light-absorption layers, the glue frame towards the part in the surface of the light guide plate for cooperatively forming the shading slot be inclined-plane, and
The inclined-plane and the backboard are towards institute's angulation between the part in the surface of the protrusion for cooperatively forming the shading slot
Degree is obtuse angle, and a part in the light of the non-incidence surface injection is reflected towards second light-absorption layer.
3. backlight according to claim 2, which is characterized in that the obtuse angle is 145 °.
4. backlight according to claim 2, which is characterized in that second light-absorption layer is shading rubber belt.
5. backlight according to claim 1, which is characterized in that the glue frame is towards being used in the surface of the light guide plate
The part for cooperatively forming the shading slot is equipped with third light-absorption layer.
6. backlight according to claim 5, which is characterized in that the backboard towards in the surface of the protrusion for matching
The part for forming the shading slot is closed equipped with the 4th light-absorption layer.
7. backlight according to claim 6, which is characterized in that first light-absorption layer is that shading rubber belt or extinction apply
Layer, the third light-absorption layer is that perhaps light-absorbing coating the 4th light-absorption layer is shading rubber belt or light-absorbing coating to shading rubber belt.
8. backlight according to claim 7, which is characterized in that the light-absorbing coating is polytetrafluoroethylene film.
9. a kind of display device, which is characterized in that including such as described in any item backlights of claim 1-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866413.1A CN107505670B (en) | 2017-09-22 | 2017-09-22 | Backlight and display device |
| US15/995,885 US10401680B2 (en) | 2017-09-22 | 2018-06-01 | Backlight source and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866413.1A CN107505670B (en) | 2017-09-22 | 2017-09-22 | Backlight and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107505670A CN107505670A (en) | 2017-12-22 |
| CN107505670B true CN107505670B (en) | 2019-06-21 |
Family
ID=60697119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710866413.1A Active CN107505670B (en) | 2017-09-22 | 2017-09-22 | Backlight and display device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US10401680B2 (en) |
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| CN108319076A (en) * | 2018-01-31 | 2018-07-24 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic device |
| CN108873424B (en) * | 2018-05-25 | 2020-09-11 | 北京京东方茶谷电子有限公司 | Backlight source structure and display device |
| CN109061790A (en) * | 2018-07-25 | 2018-12-21 | 青岛海信电器股份有限公司 | A kind of side entrance back module |
| CN111399108A (en) * | 2020-04-15 | 2020-07-10 | 宁波视睿迪光电有限公司 | Light guide plate, backlight module, display module and electronic equipment |
| CN114839809A (en) * | 2022-04-22 | 2022-08-02 | 北京京东方显示技术有限公司 | Backlight module and display device |
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| CN203273562U (en) * | 2013-05-31 | 2013-11-06 | 北京京东方光电科技有限公司 | Backlight module and liquid crystal display device |
| CN203825226U (en) * | 2014-05-21 | 2014-09-10 | 北京京东方光电科技有限公司 | Light guide plate, backlight module and display apparatus |
| CN104534363A (en) * | 2014-12-31 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with backlight module |
| CN204328702U (en) * | 2015-01-04 | 2015-05-13 | 京东方光科技有限公司 | A kind of backlight and display unit |
| CN105700241A (en) * | 2016-04-28 | 2016-06-22 | 京东方科技集团股份有限公司 | Backlight module, LCD panel and display device |
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| CN104390177A (en) * | 2014-11-14 | 2015-03-04 | 深圳市华星光电技术有限公司 | Backlight module |
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| CN203273562U (en) * | 2013-05-31 | 2013-11-06 | 北京京东方光电科技有限公司 | Backlight module and liquid crystal display device |
| CN203825226U (en) * | 2014-05-21 | 2014-09-10 | 北京京东方光电科技有限公司 | Light guide plate, backlight module and display apparatus |
| CN104534363A (en) * | 2014-12-31 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with backlight module |
| CN204328702U (en) * | 2015-01-04 | 2015-05-13 | 京东方光科技有限公司 | A kind of backlight and display unit |
| CN105700241A (en) * | 2016-04-28 | 2016-06-22 | 京东方科技集团股份有限公司 | Backlight module, LCD panel and display device |
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| CN107505670A (en) | 2017-12-22 |
| US10401680B2 (en) | 2019-09-03 |
| US20190094621A1 (en) | 2019-03-28 |
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